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AD7723 Datasheet(PDF) 2 Page - Analog Devices

Part # AD7723
Description  16-Bit, 1.2 MSPS CMOS, Sigma-Delta ADC
PDF  23 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7723 Datasheet(HTML) 2 Page - Analog Devices

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–2–
REV. 0
AD7723–SPECIFICATIONS1
B Version
Parameter
Test Conditions/Comments
Min
Typ
Max
Units
DYNAMIC SPECIFICATIONS2, 3
HALF_PWR = 0 or 1
fCLKIN = 10 MHz When HALF-PWR = 1
Decimate by 32
Bipolar Mode
Signal to Noise
Full Power
2.5 V Reference
87
90
dB
3 V Reference
88.5
91
dB
Half Power
86.5
89
dB
Total Harmonic Distortion4
–96
–90
dB
Spurious Free Dynamic Range4
2.5 V Reference
–92
dB
3 V Reference
–90
dB
Unipolar Mode
Signal to Noise
87
dB
Total Harmonic Distortion4
–89
dB
Spurious Free Dynamic Range4
–90
dB
Bandpass Filter Mode
Bipolar Mode
Signal to Noise
76
79
dB
Decimate by 16
Bipolar Mode
Signal to Noise
Measurement Bandwidth = 0.383
× F
O
2.5 V Reference
82
86
dB
3 V Reference
83
87
dB
Signal to Noise
Measurement Bandwidth = 0.5
× F
O
78
81.5
dB
Total Harmonic Distortion4
2.5 V Reference
–88
dB
3 V Reference
–86
dB
Spurious Free Dynamic Range4
2.5 V Reference
–90
dB
3 V Reference
–88
dB
Unipolar Mode
Signal to Noise
Measurement Bandwidth = 0.383
× F
O
84
dB
Signal to Noise
Measurement Bandwidth = 0.5
× F
O
81
dB
Total Harmonic Distortion4
–89
dB
DIGITAL FILTER RESPONSE
Low Pass Decimate by 32
0 kHz to fCLKIN/83.5
± 0.001
dB
fCLKIN/66.9
–3
dB
fCLKIN/64
–6
dB
fCLKIN/51.9 to fCLKIN/2
–90
dB
Group Delay
1293/2fCLKIN
Settling Time
1293/fCLKIN
Low Pass Decimate by 16
0 kHz to fCLKIN/41.75
± 0.001
dB
fCLKIN/33.45
–3
dB
fCLKIN/32
–6
dB
fCLKIN/25.95 to fCLKIN/2
–90
dB
Group Delay
541/2fCLKIN
Settling Time
541/fCLKIN
Band Pass Decimate by 32
fCLKIN/51.90 to fCLKIN/41.75
± 0.001
dB
fCLKIN/62.95, fCLKIN/33.34
–3
dB
fCLKIN/64, fCLKIN/32
–6
dB
0 kHz to fCLKIN/83.5, fCLKIN/25.95 to fCLKIN/2
–90
dB
Group Delay
1293/2fCLKIN
Settling Time
1293/fCLKIN
Output Data Rate, FO
Decimate by 32
fCLKIN/32
Decimate by 16
fCLKIN/16
ANALOG INPUTS
Full-Scale Input Span
VIN(+) – VIN(–)
Bipolar Mode
± 4/5 × V
REF2
V
Unipolar Mode
0
8/5
× V
REF2
V
(AVDD = DVDD = +5 V
5%; AGND = AGND1 = AGND2 = DGND = 0 V;
fCLKIN = 19.2 MHz; REF2 = 2.5 V; TA = TMIN to TMAX; unless otherwise noted)



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